Abstract: An adapter for converting a conventional ladder to a tree stand ladder which comprises a substantially flat horizontal platform having a pair of vertical connecting members extending downwardly and from one end of the platform, each connecting member has a port for receiving a top portion of the lateral members of a ladder with a ladder locking device forming a connection between the connecting members and the top portion of the lateral support members of the ladder. The other end of the horizontal platform is provided with a curved portion for mating with a tree or pole while a ratchet type locking strap is used to secure the tree stand ladder adapter along with a ladder to a tree or pole while a second securing strap is provided near a lower or middle part of the ladder securing a middle or lower portion of the ladder to the tree if desired.